How to build the pillared graphene

Hello everyone,

I just started to use Materials Studio and decide to do some research using the Forcite module. I want to build the pillared graphene and do the geometry optimization using the Forcite module cause we only have this license.

In materials studio, I built up the graphene and the CNT model, but i am really confused how can I combine it together using the heptagon site or the hexagon site or something else. I followed the instruction written in Nano Letter to create a hole in graphene layer, but still i could not get the same structure as the attachment showed. So if someone could give me some guidance in how to build the pillared graphene I will be very grateful. 

Greatly thanks if you can offer me some help,

Jamie